Quiz: Java Introduction

5 questionsNo time limitPass: 60%+10 XP on first pass

Why Java is everywhere in Indian IT, how javac and the JVM run your code on any OS, JDK vs JRE vs JVM, and your first program explained line by line.

Free account · see your score, answers and explanations, earn XP

Question 1
What does the javac command produce?
Machine code for Windows onlyBytecode (.class files)A .java fileAn .exe installer

Question 2

What does this print?

public class Main {
    public static void main(String[] args) {
        System.out.println("A" + 1 + 2);
    }
}

A3A123AError

Question 3
Which one do you need to WRITE and compile Java programs?
JVMJREJDKOnly a browser
Question 4
What makes Java "write once, run anywhere"?
It compiles directly to Windows codeBytecode runs on any OS that has a JVMIt only runs in browsersIt is interpreted from source each time

Question 5

What does this print?

public class Main {
    public static void main(String[] args) {
        System.out.println(5 + 3 + "x");
    }
}

53x8xx8Error